Shut-off valve for water-chambers of liquid-forcing apparatus.



MTNESSES A .9 Mud M W KW 'No. 660,935. Patented Oct; :30, 1900.-

I H. S TA UFF. SHUT-0FF VALVE FOR WATER CHAMBERS OF LIQUID FOBCINGAPPARATUS.

(Application filed 20, 18 99.)

(No Model.)

g g I r I I a v a I l I a I n 1 I I I m m paw-m UNITED STATES [PATENTOFFICE. I

HEINRICH STAUFF, OF COLOGNE, GERMANY.

SHUT-OFF VALVE FOR WATER-CHAMBERS OF LIQUID-FORCING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 660,935, dated October30, 1900.

Application filed December 20, 1899. serial No. 741,010- \l\l0 model.)

To all whom it may concern:

Be it known that I, HEINRICH STAUFF, brewery owner, a subject of theGerman Etnperor, residing at 324 Konnerstrasse, Arnoldshohe, Cologne,Germany, have invented certain new and useful Improvements in Shut- OffValves for Water-Chambers of Liquid- Forcing Apparatus; and I do herebydeclare,

the following to be a full, clear, and exact description oftheinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

The automatic shut-off valves heretofore employed on the water-chambersof pressure always passes into the air-conduit, which wa ter collects inthe air vessel and becomes stagnant, having the effect, on the one hand,of more or less impairing the purity of the air which is led in contactwiththe beer, and, on the other hand, gradually reducing the airspace inthe air-vessel, so that the apparatus requires frequent adjustment. Suchpassage of water takes place in an increasing degree when the ball-valvehas been in use for some time, when by the frequent pressing against theopening of the conduit it loses its accurate.

spherical form.

The present invention relates to a construction of shut-off valveapparatus whereby the above disadvantages are done away with, as iteffectually prevents the passage of any water into the air-conduit. mentof the valve apparatus for this purpose is as follows:

Referring to the accompanying drawing,

which shows a vertical section of the apparatus, a is a glass cylinderin which is situ ated a loosely-fitting thin disk I) of metal or othermaterial, which is connected by a rod d, passing loosely through thetubular passage c with the valve 6 of elastic material. The combinedparts are secured by screwing by means of a connecting-piece) to the wa--The arrangetor-chamber below in precisely the same manner as with theexisting shut-off valves, the chamber a being connected at top to theair-conduit h.

When the water supply to the waterchamber is opened, the air containedtherein passes through the channels 9 g g and g gc into the vessel onbelow the disk b and between this and the glass cylinder upward into theair-conduit, the upward pressure of such air-current being made to holdthe disk I? and the valve 6 in a floating position in which the valvedoes not close the upper channels. When the air has been forced out ofthe water-chamber, water takes its place in the above-mentionedchannels, and-the upward pressure of this water upon the disk 17 closesthe valve 6 upon its seat. The water can cylinder at as to effect theclosing of the valve, sojthat no water can ever penetrate into theair-conduit. It is not necessary for the correct action of the apparatusto keep the weight of the disk b and the valve connected thereto sosmall that they are actually raised by t-he air-currents. It is onlynecessary to see that the disk b and valve 6 do not bear so closeagainst the communicating channels as to prevent the air from passingthrough. On the rising of the Water this will then raise the disk 1)sufficiently to close the valve against further admission of water intothe glass cylinder, as described.

Having now particularly described and ascertained the nature of thisinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. In an apparatus for forcing liquids by pneumaticpressure, the combination of an air-delivery conduit and a controllingvessel communicating with the air-conduit and arranged between thewater-chamber of the pressure apparatus and said conduit, a disk looselyarranged in the controlling vessel, and a valve connected thereto to beactuated thereby and adapted to close or open the communication betweenthe water-chamber and the air-conduit, whereby the water is preventedfrom entering the air-conduit.

2. In an apparatus for forcing liquids by therefore only rise to such aheight in the pneumatic pressure, the combination of an communicatingwith the air-conduit and arconduit.

air-delivery conduit and a controlling vessel I water is prevented fromentering the air- 10 ranged between the water-chamber of the Intestimony whereof I affix my signature pressure apparatus and saidconduit, with a in presence of two witnesses.

disk adapted to move loosely in the saidcontrolling. vessel, and a valveof elastic mate- HEINR' Srl AUFF' rial connected with the said disk andadapted Witnesses:

to open or close the communication between LOUISE BARNES,

the Water-chamber and conduit, whereby the i W'ILLIAM H. MADDEN.

